TREA

Fumio Togawa

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  • Osaka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Magnetic recording medium
    • Patent number 4,536,444
    • Issue date Aug 20, 1985
    • Hitachi Maxell, Ltd.
    • Kenji Sumiya
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Magnetic recording medium
    • Patent number 4,480,004
    • Issue date Oct 30, 1984
    • Hitachi Maxell, Ltd.
    • Fumio Togawa
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Magnetic recording medium
    • Patent number 4,465,735
    • Issue date Aug 14, 1984
    • Hitachi Maxell, Ltd.
    • Fumio Togawa
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Magnetic recording medium
    • Patent number 4,444,835
    • Issue date Apr 24, 1984
    • Hitachi Maxell, Ltd.
    • Fumio Togawa
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Magnetic recording medium and process
    • Patent number 4,299,882
    • Issue date Nov 10, 1981
    • Hitachi Maxell, Ltd.
    • Fumio Togawa
    • G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents